Panasonic PT-RS30K Service Manual page 66

SECTION 1 SERVICE INFORMATION
■ SDI2 input check
Check power supply lines.
IC3059-1 pin : 3.3V, IC3351-5pin : 1.2V
A Check the voltage is less than [0.4V] at pin 7 of IC3072.
Check clock frequency at R3444.
A In case of 3G-SDI signal : 148.5MHz
In case of HD-SDI signal : 74.25MHz
A Check R3411(G9), R3406(CLK), R3416(HS, VS).
A Check IC3058 and peripheral circuit.
■ A-P.C.Board operation check
Check the clock waveform
A
R3611 : 24.5MHz
A Check that the voltage is 1.2V at R3801.
A Check that the voltage is 1.5V at C3864.
A Check that the voltage is 0.75V at R3981.
Check the waveform at IC3501 with NO signal input.
A
Connector A2 pins 21-22 (Differential CLK) : 80MHz
Follow the section "DG/FM-P.C.Board operation check"
OK
OK
OK
OK
OK
OK
OK
OK
OK
NG
A Check IC3059, IC3351 and peripheral circuit.
NG
A Check IC3072 and peripheral circuit.
NG
A Check IC3058 and peripheral circuit.
NG
Follow the section "A-P.C.Board operation check"
NG
A Check IC3501, X3501 and peripheral circuit.
NG
A Check IC3511 and peripheral circuit.
NG
A Check IC3510 and peripheral circuit.
NG
A Check IC3520 and peripheral circuit.
NG
A Check IC3501 and peripheral circuit.
INF-56
<RZ31K/RS30K>